Home / 70,318.12-105,491.34-25,945.12

Finding the Fourth Proportional to 70,318.12, 105,491.34 and 25,945.12

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Solution

The fourth proportional to 70,318.12, 105,491.34 and 25,945.12 is: 38,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,318.12 : 105,491.34 = 25,945.12 : x
  2. Step 2: Convert to fraction form
    70,318.12/105,491.34 = 25,945.12/x
  3. Step 3: Cross multiply
    70,318.12x = 105,491.34 × 25,945.12
  4. Step 4: Simplify right side
    70,318.12x = 2,736,985,475.26
  5. Step 5: Solve for x
    x = 2,736,985,475.26/70,318.12
  6. Step 6: Final answer
    x = 38,922.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.